Full-Scale Nitrogen Removal from Digester Liquid with Partial Nitritation and Anammox in One SBR

Joss, Adriano; Salzgeber, David; Eugster, J.; König, Roger; Rottermann, Karin; Burger, Sabine; Fabijan, Peter; Leumann, Susanne; Mohn, Joachim; Siegrist, Hansruedi

doi:10.1021/es900107w

Cited by 456 publications

(221 citation statements)

References 28 publications

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“…Optimum NLR should be maintained in order to keep high efficiency for nitrogen removal in such kind of bioreactor. Compared with liquid SBR or UASB reactors (Joss et al 2009;Lan et al 2011;Yang et al 2009), NLR is low in the aged refuse bioreactor. Since the aged refuse bioreactor is a biofilter, biomass is much lower than that in the liquid bioreactor.…”

Section: Discussionmentioning

confidence: 99%

“…The technology has been developed to treat ammonium-rich wastewater, such as landfill leachate, digested sludge in a sequential batch reactor (SBR) or upflow anaerobic sludge blanket (UASB) system, etc. (Joss et al 2009;Kartal et al 2010). The anammox activity in recirculated bioreactor was confirmed as "accidental" running (Valencia et al 2011).…”

Section: Introductionmentioning

confidence: 87%

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Nitrogen removal through different pathways in an aged refuse bioreactor treating mature landfill leachate

Xie

et al. 2012

Appl Microbiol Biotechnol

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In this study, an aged refuse bioreactor was constructed to remove nitrogen in a mature landfill leachate. The nitrogen removal efficiency and the microbial community composition in the bioreactor were investigated. The results showed that the aged refuse bioreactor removed more than 90 % of total nitrogen in the leachate under the nitrogen loading rate (NLR) of 0.74 g/kg (vs) day, and the total nitrogen removal rate decreased to 62.2 % when NLR increased up to 2.03 g/kg (vs) day. Quantitative polymerase chain reaction results showed that the average cell number of ammoniaoxidizing bacteria in the bioreactor was 1.58×10 8 cells/g, which accounted for 0.41 % of total bacteria. The number of anammox bacteria in the reactor was 1.09×10 8 cells/g, which accounted for 0.27 % of total bacteria. Isotopic 15 N tracing experiments showed that nearly 10 % of nitrogen was removed by anammox. High-throughout 454 pyrosequencing revealed that the predominant bacteria in the bioreactor were Proteobacteria, Chloroflexi, Actinobacteria, Bacteroidetes, and Gemmatimonadetes, including various nitrifiers and denitrifiers with diverse heterotrophic and autotrophic metabolic pathways, supporting that nitrogen was removed through different pathways in this aged refuse bioreactor.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 87%

Nitrogen removal through different pathways in an aged refuse bioreactor treating mature landfill leachate

Xie

et al. 2012

Appl Microbiol Biotechnol

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“…The PN-anammox process is applicable to reject water (Desloover et al, 2011;Kampschreur et al, 2008;2009a;Joss et al, 2009;Okabe et al, 2011), landfill leachate (Wang et al, 2010), and wastewater from semiconductor factory (Tokutomi et al, 2011). N 2 O emission from PN-anammox processes, especially from the PN process, has been reported (Desloover et al, 2011;Kampschreur et al, 2008;Okabe et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Source identification of nitrous oxide on autotrophic partial nitrification in a granular sludge reactor

et al. 2013

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Emission of nitrous oxide (N 2 O) during biological wastewater treatment is of growing concern since N 2 O is a major stratospheric ozone-depleting substance and an important greenhouse gas. The emission of N 2 O from a lab-scale granular sequencing batch reactor (SBR) for partial nitrification (PN) treating synthetic wastewater without organic carbon was therefore determined in this study, because PN process is known to produce more N 2 O than conventional nitrification processes. The average N 2 O emission rate from the SBR was 0.32 ± 0.17 mg-N L -1 h -1 , corresponding to the average emission of N 2 O of 0.8 ± 0.4% of the incoming nitrogen load (1.5 ± 0.8% of the converted NH 4 + ). Analysis of dynamic concentration profiles during one cycle of the SBR operation demonstrated that N 2 O concentration in off-gas was the highest just after starting aeration whereas N 2 O concentration in effluent was gradually increased in the initial 40 min of the aeration period and was decreased thereafter. Isotopomer analysis was conducted to identify the main N 2 O production pathway in the reactor during one cycle. The hydroxylamine (NH 2 OH) oxidation pathway accounted for 65% of the total N 2 O production in the initial phase during one cycle, whereas contribution of the NO 2 -reduction pathway to N 2 O production was comparable with that of the NH 2 OH oxidation pathway in the latter phase. In addition, 3 spatial distributions of bacteria and their activities in single microbial granules taken from the reactor were determined with microsensors and by in situ hybridization. Partial nitrification occurred mainly in the oxic surface layer of the granules and ammonia-oxidizing bacteria were abundant in this layer. N 2 O production was also found mainly in the oxic surface layer. Based on these results, although N 2 O was produced mainly via NH 2 OH oxidation pathway in the autotrophic partial nitrification reactor, N 2 O production mechanisms were complex and could involve multiple N 2 O production pathways.

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“…Stoichiometry of the Anammox process has been revised by a membrane bioreactor (MBR) with free Anammox bacteria and a negligible amount of non-Anammox bacteria [5]. The process is a highly efficient and cost-effective technology for treating effluents with low C/N and high ammonia content as it allows for oxygen and organic carbon source retention and has an excellent nitrogen removal capacity [6]. …”

Section: Introductionmentioning

confidence: 99%

Characterization of a Microbial Community in an Anammox Process Using Stored Anammox Sludge

Chen

Dai

Cao

et al. 2017

Water

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This study investigated a rapid start-up anaerobic ammonium oxidation (Anammox) process by inoculation with stored Anammox sludge and characterized the associated microbial communities. The Anammox process took only 43 days to start. A high nitrogen removal rate of 1.13 kg N m −3 d −1 and a nitrogen loading rate of 1.28 kg N m −3 d −1 were achieved. The ratio of ammonium removal to nitrite removal to nitrate production (1:1:0.2) was slightly lower than the theoretical value, which indicated nitrogen removal by denitrification in the reactor. Illumina high-throughput sequencing of sludge samples confirmed the co-existence of Anammox bacteria and denitrifying bacteria in the reactor and demonstrated that denitrifying bacteria play a role in nitrogen removal during the Anammox process. The dominant microbes in the reactor were Proteobacteria, Chlorobi, Chloroflexi, and Planctomycetes. However, only one species of Anammox bacteria, Candidatus jettenia, was identified and had an abundance of 4.92%. Our results illustrate the relationship between Anammox reactor performance and microbial community succession.

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Full-Scale Nitrogen Removal from Digester Liquid with Partial Nitritation and Anammox in One SBR

Cited by 456 publications

References 28 publications

Nitrogen removal through different pathways in an aged refuse bioreactor treating mature landfill leachate

Nitrogen removal through different pathways in an aged refuse bioreactor treating mature landfill leachate

Source identification of nitrous oxide on autotrophic partial nitrification in a granular sludge reactor

Characterization of a Microbial Community in an Anammox Process Using Stored Anammox Sludge

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